Analysis of information sources in references of the Wikipedia article "弗兰克·辛曼·皮尔蓬特" in Chinese language version.
That it was Pierpont himself who was central to this drive for quality is made abundantly clear by the abrupt changes that are seen after his retirement in 1937. All the types produced during the brief period before the Second World War, although they naturally have many fine features, are more or less flawed.
